Sliver coiler



R. C. BERKER SLIVER COILER Feb. 12, 1957 2 Sheets-Sheet 1 Filed June 8, 1955 R. c. BERKER SLIVER CO-LLER Feb. 12, 957

2 Sheets-Sheet 2 Filed June 8, 1953 I INVENTOR. $040k CZBerKer fiMu/Q/JZAZw ATTORNEYS.

SLIVER t'JO ILER Ralph C. Barker, Hoxsie, R. 1. Application June'8, 1953, Serial No. 360,067

Claims. (Cl. 19-459) This invention relates to improvement in a sliver coiler unit for a textile sliver processing machine.

Heretofore, sliver coilers 'of the above character c0mmonly employed in the art mounted the feed rolls at a location adjacent the peripheral edge of the coiler plate. These rollers were mounted on rotatable shafts pivo'tally related to each other for permitting separating of the feed rollers from each other in case a bunch or large particle should pass between them. Such mounting of feed rollers is not desirable in that the rollers do not bear evenly across all sizes of sliver and are not separable from each other along parallel lines.

An object of the invention is to mount the feed rollers of a coiler head in a manner to effect parallel separation thereof.

Another object of the invention is to provide for mounting the feed rollers in a manner to effect selfthreading of the sliver through the sliver channel or passage.

Another object of the invention is-to provide for mounting the feed rollers to resiliently yield should a bunch or large particle be passed between the feed rollers.

With these and other objects in view, the invention consists of certain novel features of construction as will be more fully described and particularly pointed out .in'lthe appended claims.

In the accompanying drawings:

Figure 1 is a top plan view of a coiler for a sliver processing machine embodying my invention;

Figure 2 is a sectional view taken substantially along line 2-2 of Figure 1 looking in the direction of the arrows thereon;

Figure 3 is a similar view with certain portions omitted and with one of the feed rollers moved away from the other roller; and

Figure 4 is a sectional view taken substantially along line 4-d of Figure l-ioolting in the direction of the arrows thereon.

The coilerhead or so called coiler gear according to the present invention has two feed rolls carried thereby,

one of the feed rollers being mounted to swing to and r from the-other about axis extending parallel t0 the axes of rotation of the feed rollers whereby the rollers will be maintained in parallelism at all spacing there- -between. The sliver passage through the gear extends from a pointconcentric with the axis of rotation'of the coiler to a point on the lower side at the marginal edge of the gear. The feed rollers extend across the said passage and 'asliver inserted in the upper end of the 2,780,841 Patented Feb. 12, 1957 parallel separation of the rollers may be had to accommodate various sizes in sliver.

Referring to the drawings, the rotary coiler plate 10 is provided with a toothed periphery 11 and a bearing hub 12 about which is formed an annular shoulder 13 by means of a recess 14. This hub is rotatably mounted in bearing opening 17 of a bracket 15 which is held stationary above a rotatable can 16 in which the sliver (not shown) is received and coiled as delivered from the said coiler plate. The bearing opening 17 is surrounded by an annular ledge or bearing surface 18 formed by an annular groove 19 and is attached to the frame of the machine (not shown) at a location so as to position the coiler plate beneath the set of usual front draft rollers (not shown) preferably centrally in line therewith in the well-known arrangement. The bearing hub 12 is'rotatably received in the opening 1'7 with the shoulder 13 hearing on the surface 13. The toothed periphery 11 is engaged and rotated by a gear wheel 20 which is driven from a convenient rotatable power source (not shown) of the said machine.

Superimposed on the coiler or base plate 10 and secured thereto in an appropriate manner so as to revolve therewith is a sliver feeding member designated generally 21 having a vertical bore 22 extending inwardly from the upper edge from a point over the center of the plate 10 and intersecting an inclined bore 23 extending inwardly from the peripheral marginal edge of the hub 12. These two bores form a passage 24 so as to deliver a sliver passing down through said passage in a coil around the interior of the cam 16. it may be here pointed out that the can 16 is rotated in a direction opposite to that of the plate it so as to place a soft twist in the sliver as is usual in intermediate operations on slivers in the processing thereof.

The sliver is carried from the bore 22 into the bore 23 by a pair of feeding rollers 15 and 26 of substantially equal diameters which are positioned across the passage 24 for the bite 27 thereof to extend across the point of intersection of the said bores and with the axis of the roller extending centrally at right angles to the bore 22.

The roller 25 is mounted and secured on a shaft 28 which is journaled in bearings 29 and has a bevel gear pinion 3% which projects through a slot 31 (see Figure 4) in the plate 10 to engage with a ring bevel gear 32 having a central opening 33 which may be press-fitted into the recess 19 about the outer periphery of the flange at the inner edge thereof or otherwise secured to the plate '15 so as to be held stationary therewith. Thus, as the plate It} is rotated in the opening 17, the rotary motion thereof will be transmitted through the gears 36, 32 to the shaft 28.

In order to move the feed rollers towards one another so as to bite upon the sliver passing between them and so that they may yield and be forced apart in case a bunch or largeparticle should occur and also to provide for different sizes of slivers, the roller 26 is mounted on a shaft 34 which extends parallel to the shaft 28 and is journaled in a yoke 35 swingable about an axis parallel to the axis of shaft 23 and 34. A pinion gear 36 on shaft 34 is adapted toengage :a similar pinion gear 37 carried on the shaft 28 to be driven therefrom for rotating the roller 26 at the same speed as the roller 25. Thus, as the rollers 25, 26 are equal in diameter, their surface speed will be equal to each other. The bore 22 extends through the yoke 35 which is provided with a foot or lip 38 and spaced arms 39 which straddle the roller 25 and are pivotally mounted on a pivot pin 40 which extends parallel to the shafts 28, 34, through the base block 41 of the member 21 so as to swing the roller 26 to or from the roller and maintain parallelism therewith at any spacing therebetween. The adjacent or lower side of the yoke opposite to the roller 25 is made on a curvature 35' (Figure 3) slightly greater than the radiusof the said roller 25 so as to provide for a'slight clearance therebetween, and the lip or catch 38 which has an inwardly extending slot 42 is adapted to rest or bear on a pad 43, the inner end of which is slotted as at 44 to register with the slot 42.

A pin 45 is rotatably mounted on the pad 43 to extend into the slot 44 and has attached thereto a threaded member or stud 46 which extends at right angles thereto forming a latch swingable in and out of said slot 42.

A compression spring 47 encircles the stud 46 and a knurled nut 48 engages the stud 46 to adjustably bear against the upper end of the said spring 47. A washer 49 may be positioned between the catch 38 and the lower end of the spring 47. The pivoted axis of yoke 35 is at one side and above the shaft 28 so that the force of gravity upon said yoke and roller 26 tends to additionally increase the spring pressure to press the roller 26 towards the roller 25 and the driving action of the gears 36, 37 tends to slightly increase this pressure. The roller 26 is, however, free to yield and, if required, may be swung away from the roller 25 to the position shown in Figure 3 with the roller 26 resting in the arcuate surface 50 (see Figure 2) formed in the upper side of the block 41, thus widely separating the rollers and leaving each accessible for such purpose as may require separation of the rollers. For separating the rollers as shown in Figure 3, it is merely necessary to loosen the nut 48 to release the pressure of the spring 47 and then the stud 46 may be readily swung to the position shown in Figure 3 to free the yoke 35.

The block 41 is secured for sliding movement on the gear 10 by cap screws or the like fastenings 51 which extend through elongated openings in the block 41 and threadedly engage the gear 10. The inner end portion 52 of the said block 41 is resiliently biased into engagement with the roller 25 by means of a compression spring 53 which bottoms in a bore 54 in the block 41. The other end of the spring is engaged by an adjustable screw 55 which threadedly extends through a vertical lug 56 carried by the gear 10. Thus, the block will be resiliently held in engagement with the roller 25 so as to provide a seal connection therebetween to prevent any filament from the sliver from passing by. With a view of reducing excess frictional contact between the roller 25 and the portion 52, the engaging side of said portion 52 is relieved as at 56.

The bore 22 is made of a diameter for the largest size sliver and by the use of interchangeable bushings 57 received in the bore 22 and having proper size bore 58 therethrough, the coiler device or apparatus may be adapted for use for any smaller size sliver.

In the use of the coiler, the sliver is threaded through the passage 24 by inserting the same into the bore 22 to be engaged by the surface of roller 25 which is made to rotate in a counter-clockwise direction as seen in Figure 2. The sliver is picked up through frictional contact with the roller 25 to advance the sliver to the bite 27 to be drawn therethrough to the bore 23 and out into the can 16 which as previously stated is being made to rotate in the opposite direction at a speed equal to the speed of rotation of the plate 10. Upon a sufiicient stretch of sliver having been fed or delivered into the can 16, the friction of the sliver with the interior wall of the can will be sufiicient to cause the sliver to trail the revolving plate 10 to be laid in coils into the can in the usual manner. In providing for the separation of the feed rolls along parallel axes, the coiler is adapted for use on different size sliver and to also provide for a more uniform bite on the sliver passed through the passage 24 in a manner which cannot be attained with the construction of coilers heretofore commonly employed in the art.

I claim:

1. A sliver coiler comprising a rotatable plate, a first member carried by said plate for rotation therewith, a second member pivotally mounted on said first member for swinging movement relative thereto, said coiler having a sliver passageway therethrough having a portion thereof extending through the said second member centrally of said plate, a second portion extending through the first said member and through said plate at the peripheral edge thereof, a pair of feed rollers extending across said passageway, one of said feed rollers being mounted on the said first member and the other of said rollers being mounted on the said second member for swinging movement therewith to and from the said one of said feed rollers.

2. A sliver coiler as set forth in claim 1 wherein said passageway has a vertically extending portion on one side of said rollers and the second portion of said passageway extends from the other side of said rollers to the said peripheral edge of the plate and at an angle to the first portion.

3. A sliver coiler as set forth in claim 1 wherein said side of said rollers and the second portion of said passageway extends from the other side of said rollers to the said peripheral edge of the plate and at an angle to the first portion, one of said rollers having an axis extending centrally of said vertical portion at right angles thereto.

4. A sliver coiler as set forth in claim 1 wherein said rollers are adjustably spring biased for movement towards each other.

5. A sliver coiler comprising a rotatable plate, a first member carried by said plate for rotation therewith, a second member pivotally mounted on said first member for swinging movement relative thereto, said coiler having a sliver passageway having a vertical portion extending through the said second member centrally of said plate and a second portion extending inwardly from the lower peripheral edge of said plate, thence through the first member and intersecting the first said portion, a pair of feed rollers extending across said passageway at the said intersection, one of said rollers being mounted on the said first member and the other of said rollers being mounted on the said second member for swinging movement therewith to and from the said one of said rollers, and spring means for biasing said rollers toward each other.

References Cited in the file of this patent UNITED STATES PATENTS 432,132 Francis July 15, 1890 572,433 Meats et al. Dec. 1, 1896 2,152,295 Weinberger Mar. 28, 1939 FOREIGN PATENTS 131,141 Great Britain Aug. 14, 1919 

